Florian, I've tryed your sample app and IT WORKS! (without modifications)
So this is not a good new, indeed...
I tell you what I did:
a) delete your exe (why include a 1Mb exe? We all have compilers, and
who will trust to execute an exe?)
a2) delete *.dsk and *.~??? (to have the project reference the current
path, try it please)
b) restore the database (username SYSDBA, pass masterkey, not the one
you give in the readme)
c) remove Project -> Options: "Output directory" and "Unit output
directory"
d) set the correct connection parameters (path, user)
e) run the program, and pick 10/11/2002 from the date pick control
(btw, why don't you use IB_Date? It works unbound too)
f) two items appear. I click column header, the sorting order changes,
but always two items in the grid!
Anyway, here Win2000SP2, D6UP2, IBO 4.2Ia

I've noticed you have manually defined query edit/insert/deleteSQL.
You can avoid this, since you can simpli set query RequestLive to
true, and IBO will build the correct edit/insert/deleteSQL on the fly
based upon the (only) defined select (this avoids errors when you
change the select and forget to update the edit/insert/deleteSQL. It
also saves coding time at the expanse of some millisecond of PC time ;))

let me know if I can help you
Marco Menardi